#1A3D9A#1A3D9A

#1A3D9A is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.8% C 0.157 H 264.5°. Best body text is #FFFFFF at 9.64:1 contrast (WCAG AA passes).

Color values

HEX	#1A3D9A
RGB	rgb(26, 61, 154)
HSL	hsl(224, 71%, 35%)
HSV	hsv(224, 83%, 60%)
CMYK	cmyk(83.1%, 60.4%, 0%, 39.6%)
CIE-LAB	lab(29.13, 23.91, -54.16)
CIE-LCH	lch(29.13, 59.20, 293.82°)
OKLab	oklab(39.79% -0.0151 -0.1566)
OKLCH	oklch(39.79% 0.157 264.5)
XYZ	xyz(7.9254, 5.8892, 31.2846)
Luminance	0.0589 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3D9A #9A771A

analogous

#1A7D9A #1A3D9A #371A9A

triadic

#1A3D9A #9A1A3D #3D9A1A

tetradic

#1A3D9A #9A1A7D #9A771A #1A9A37

square

#1A3D9A #9A1A7D #9A771A #1A9A37

split-complementary

#1A3D9A #9A371A #7D9A1A

monochromatic

#081431 #112866 #1A3D9A #2352CE #4D76E1

Accessibility & contrast

On white

9.64

#1A3D9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#1A3D9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3D9A

9.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3D9A	#FFFFFF	#000000	##FFFFFF
##1A3D9A	1.00	9.64	2.18	9.64
#FFFFFF	9.64	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9D

Deuteranopia (green-blind)

#003F98

Tritanopia (blue-blind)

#005565

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1a3d9a;
/* rgb */ color: rgb(26, 61, 154);
/* oklch */ color: oklch(39.8% 0.157 264.5);

Tailwind

colors: {
  custom: {
    50: '#6e72b9',
    500: '#1a3d9a',
    950: '#000000',
  },
}

SCSS

$custom: #1a3d9a;
$custom-light: #6e72b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3d9a",
  "rgb": {
    "r": 26,
    "g": 61,
    "b": 154
  },
  "hsl": {
    "h": 223.594,
    "s": 71.111,
    "l": 35.294
  },
  "oklch": {
    "l": 0.39788,
    "c": 0.15735,
    "h": 264.5
  },
  "luminance": 0.0589
}

Semantic roles & 50–950 ramp

primary

#1A3D9A

secondary

#C3A34D

accent

#BD3AEE

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #1A3D9A

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →